Image Forming Apparatus, Method of Controlling the Same, and Storage Medium

1. An image forming apparatus, comprising: a controller that executes degeneracy control that provides one or more usable functions other than a non-usable function; a storage that stores degeneracy information indicating that the degeneracy control is being executed; and a device controller that: (i) if the degeneracy information is stored in the storage and the image forming apparatus activates from a powered off state, executes a first activation process that includes driving of a part corresponding to the non-usable function, and (ii) if the degeneracy information is stored in the storage and the image forming apparatus activates from a power saving state different from the powered off state, executes a second activation process that does not include driving of the part corresponding to the non-usable function.

2. The image forming apparatus according to claim 1 , wherein the storage is a non-volatile storage.

3. The image forming apparatus according to claim 1 , further comprising a printer engine, wherein the controller executes the degeneracy control when a part of the printer engine is troubled.

4. The image forming apparatus according to claim 3 , wherein the controller provides the one or more usable functions in which the part of the printer engine is not used.

5. The image forming apparatus according to claim 1 , wherein the controller transmits to the device controller activation information indicating whether or not the image forming apparatus activates from the powered off state, and the device controller determines whether or not the image forming apparatus activated from the powered off state based on the activation information.

6. The image forming apparatus according to claim 1 , wherein the device controller executes the first activation process if the degeneracy information is not stored in the storage and the image forming apparatus activates from the power saving state.

7. The image forming apparatus according to claim 1 , wherein the device controller stores the degeneracy information in the storage.

8. The image forming apparatus according to claim 1 , wherein the device controller determines whether or not to execute the degeneracy control at a time of activation from the powered off state.

9. The image forming apparatus according to claim 8 , wherein the device controller notifies the controller when the device controller determines to execute the degeneracy control.

10. The image forming apparatus according to claim 1 , wherein in the powered off state or the power saving state, power supply to the controller, the storage, and the device controller is stopped.

11. A print apparatus, comprising: a print engine; an engine controller that controls the print engine; a memory that stores degeneracy information indicating that the print engine is performing degeneracy control, wherein the engine controller, if the degeneracy information is stored in the memory and the print apparatus activates from a power saving state, executes a first activation process that omits driving of a part of the print engine, and if the degeneracy information is stored in the memory and the print apparatus activates from a powered off state different from the power saving state, executes a second activation process including driving of the part of the print engine.

12. The print apparatus according to claim 11 , further comprising a controller that notifies activation information indicating whether or not the print apparatus activates from the power saving state to the engine controller.

13. The print apparatus according to claim 11 , wherein the memory is a non-volatile memory.

14. The print apparatus according to claim 11 , wherein the degeneracy control is executed when the part of the print engine is troubled.

15. The print apparatus according to claim 11 , wherein the engine controller executes the second activation process if the degeneracy information is not stored in the memory and the print apparatus activates from the power saving state.

16. The print apparatus according to claim 11 , wherein the engine controller stores the degeneracy information in the memory.

17. The print apparatus according to claim 11 , wherein the engine controller determines whether or not to execute the degeneracy control at a time of activation from the powered off state.

18. The print apparatus according to claim 11 , wherein in the powered off state or the power saving state, power supply to the memory and the engine controller is stopped.